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No. 752,038. PATENTEDZPEB. 16, 1904.

M. 1). COMPTON.

COMBINATION CHECK, SPREADER, AND PILOT LIGHT DEVICE.

APPLICATION FILED NOV. 20. 1902.

N0 MODEL.

WI TNESS: INVENTOR.

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ATTORNEY.

THE uoams nsns cu, mow

UNITED STATES i'atented February 16, 1904. H

PATENT OFFICE.

MELVIN D. COMPTON, OF NEW YORK, N. p Y.

COMBINATION C HECK, SPREADER, AND PILOT-LIGHT DEVICE.

SPECIFICATION forming part of Letters Patent No. 752,038, dated February16, 1904.

Application filed November 20, 1902. Serial No. 132,135, (No model.)

vide a single device which will serve when used in connection with aBunsen burner and, for example, a mantle the threefold purpose ofturning on the pilot-light, of regulating the supply of gas for theproduction of the best results, and of extinguishing the light andpermittingapilot-light to burn, so that the burner can be readilyrelighted.

To these and other ends hereinafter set forth the invention, stated ingeneral terms, consists in a device of the class specified comprisingtwo parts movable in respect to each other and whereof one is providedwith a seat and the other with a complementa-l valve and said seat beingnotched to provide a passage for supporting a pilot-light, and theinvention further comprises the improvements to be presently describedand finally claimed.

The nature, characteristic features, and scope of my invention will bemore fully understood from the following description, taken inconnection with the accompanying drawings, forming part hereof, and inwhich Figure 1 is a View principally in central section illustrating adevice embodying features of the invention. Fig. 2 is a top or plan viewwith the valve member removed in order to show the notched seat, andFig. 3 is an elevational View showing a complete burner provided withparts embodying features of the invention.

In the drawings the valve member 1 is carried by the part 2 in such away that these two elements in use constitute one piece. As shown, thevalve member is provided with a stem which is connected with the part 2,and

in this way the device can be easily made and conveniently assembled.The part2 is shown as internally threaded for engagement with the end ofa supply-pipe and as externally threaded for engagement with the cap3,which in its turn is externally fitted for engagement with the Bunsenor mixing tube 4. The part 3 is also provided with a seat 5, having oneor more notches 6, of which three are shown in Fig. 2- and of which thenumber may be increased or diminished. The part 2 is provided with aspider 7, to which the stem of the valve member is secured.

To assemble the parts shown in the drawings, the members 2 and 3 arefirst screwed together and the stem of the valve member is thenconnected with the spider 7.

In use the seat 5 and valve member 1, which is shown as of generallyspheroidal form, may be properly positioned for admitting that quantityof gas which is most appropriate for the air entering the tube 4, andwhen it is desired to extinguish the main light or flame the seat andvalve member are brought into contact, and in such case the notches 6afford a passage or by-pass suflicient to support a small or pilot lightor flame at the top of the tube 4. As shown, these adjustments can beaccomplished by turning the part 3 in one direction or the other, whichhas the effect of screwing it up and down.

It will be obvious to those skilled in the art to which my inventionappertains that modifications may be made in detail without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and arrangement of parts hereinabove set forth andillustrated in the accompanying drawings; but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. A device of the class specified comprising two elements whereof oneis provided with a seat and the other with a valve member and bothelements movable in respect to each other to adjust the escape past thevalve and said seat provided withnotches for supporting a pilotlight,substantially as described.

52. The combination in a device ofthe class roidal Valve member and anotched seat, subto specified of a notched seat and a fixed valvestantially as described.

member, substantially as described. Intestimony whereoflhavehereuntosigned 3. In combination a Bunsen or air-mixing my name.

tube, and a gas-check at the base thereof x Which comprises a fixedValve member and a MELVIN Q notched seat whereby a blue pilot-flame isIn presence of provided, substantially as described. W. J. JACKSON,

4. In combination a fixed generally sphe- K. M. GILLIGAN.

